*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { transition: background 0.4s ease, color 0.4s ease; }

:root {
  --cyan: #00e5ff;
  --cyan-dim: #00b8cc;
  --cyan-glow: rgba(0,229,255,0.15);
  --cyan-glow2: rgba(0,229,255,0.06);
  --blue: #0a1628;
  --blue-mid: #0d1f3c;
  --blue-card: #0e2040;
  --blue-border: rgba(0,229,255,0.18);
  --white: #f0f8ff;
  --muted: rgba(200,230,255,0.55);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

/* THEME: Purple */
html[data-theme="purple"] {
  --cyan: #bf7fff;
  --cyan-dim: #9d5fe0;
  --cyan-glow: rgba(191,127,255,0.15);
  --cyan-glow2: rgba(191,127,255,0.06);
  --blue: #0f0a1e;
  --blue-mid: #1a0f35;
  --blue-card: #1c1040;
  --blue-border: rgba(191,127,255,0.18);
  --white: #f5f0ff;
  --muted: rgba(220,200,255,0.55);
}

/* THEME: Green */
html[data-theme="green"] {
  --cyan: #39ff8f;
  --cyan-dim: #20d46e;
  --cyan-glow: rgba(57,255,143,0.15);
  --cyan-glow2: rgba(57,255,143,0.06);
  --blue: #061812;
  --blue-mid: #0a2518;
  --blue-card: #0b2a1c;
  --blue-border: rgba(57,255,143,0.18);
  --white: #f0fff6;
  --muted: rgba(180,255,220,0.55);
}

/* THEME: Orange */
html[data-theme="orange"] {
  --cyan: #ff8c42;
  --cyan-dim: #e06a20;
  --cyan-glow: rgba(255,140,66,0.15);
  --cyan-glow2: rgba(255,140,66,0.06);
  --blue: #180d06;
  --blue-mid: #2e1608;
  --blue-card: #33190a;
  --blue-border: rgba(255,140,66,0.18);
  --white: #fff8f0;
  --muted: rgba(255,220,190,0.55);
}

/* THEME SWITCHER UI */
.theme-switcher {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.theme-toggle-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--blue-border);
  background: var(--blue-card);
  color: var(--cyan);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  box-shadow: 0 0 20px var(--cyan-glow);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.theme-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 30px var(--cyan-glow);
  border-color: var(--cyan);
}

.theme-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.35s cubic-bezier(0.16,1,0.3,1), opacity 0.3s ease;
}
.theme-options.open {
  max-height: 300px;
  opacity: 1;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border-radius: 100px;
  border: 1px solid transparent;
  background: var(--blue-card);
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  white-space: nowrap;
}
.theme-option:hover, .theme-option.active {
  border-color: var(--cyan);
  transform: translateX(-4px);
  box-shadow: 0 0 16px var(--cyan-glow);
}
.theme-option.active {
  color: var(--cyan);
}

.theme-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}
.dot-cyan   { background: #00e5ff; box-shadow: 0 0 8px rgba(0,229,255,0.6); }
.dot-purple { background: #bf7fff; box-shadow: 0 0 8px rgba(191,127,255,0.6); }
.dot-green  { background: #39ff8f; box-shadow: 0 0 8px rgba(57,255,143,0.6); }
.dot-orange { background: #ff8c42; box-shadow: 0 0 8px rgba(255,140,66,0.6); }

html { scroll-behavior: smooth; }

body {
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
  cursor: none;
}

/* Custom cursor */
.cursor {
  position: fixed;
  width: 12px; height: 12px;
  background: var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
  mix-blend-mode: difference;
}
.cursor-ring {
  position: fixed;
  width: 40px; height: 40px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.18s ease, width 0.2s, height 0.2s, opacity 0.2s;
  opacity: 0.5;
}
body:hover .cursor-ring { opacity: 1; }

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--blue); }
::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 4px; }

/* Background grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  backdrop-filter: blur(16px);
  background: rgba(10,22,40,0.7);
  border-bottom: 1px solid var(--blue-border);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
  font-weight: 500;
}
.nav-links a:hover { color: var(--cyan); }
.nav-badge {
  font-size: 0.75rem;
  background: var(--cyan-glow);
  border: 1px solid var(--blue-border);
  color: var(--cyan);
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.08em;
}
.nav-badge::before { content: '✦ '; }

/* HERO */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.hero-glow {
  position: absolute;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,229,255,0.12) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { opacity: 0.7; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.08); }
}
.hero-tag {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.7s 0.2s forwards;
}
.hero-tag span {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
  animation: blink 1.4s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin-bottom: 36px;
}
.hero-title .line {
  display: block;
  overflow: hidden;
}
.hero-title .line span {
  display: block;
  opacity: 0;
  transform: translateY(80px);
  animation: slideUp 0.8s cubic-bezier(0.16,1,0.3,1) forwards;
}
.hero-title .line:nth-child(1) span { animation-delay: 0.35s; }
.hero-title .line:nth-child(2) span { animation-delay: 0.5s; color: var(--cyan); }
.hero-title .line:nth-child(3) span { animation-delay: 0.65s; }

@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
  from { opacity: 0; transform: translateY(16px); }
}

.hero-sub {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1rem;
  font-weight: 300;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.7s 0.8s forwards;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s 1s forwards;
}
.btn-primary {
  background: var(--cyan);
  color: var(--blue);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  box-shadow: 0 0 30px rgba(0,229,255,0.25);
  text-transform: uppercase;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(0,229,255,0.45);
  background: #33eeff;
}
.btn-outline {
  border: 1px solid var(--blue-border);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  cursor: none;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
  text-transform: uppercase;
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: 48px;
  writing-mode: vertical-rl;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: fadeUp 0.7s 1.3s forwards;
}
.hero-scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
}
.hero-stack {
  position: absolute;
  bottom: 48px;
  left: 48px;
  display: flex;
  gap: 10px;
  opacity: 0;
  animation: fadeUp 0.7s 1.1s forwards;
}
.stack-tag {
  font-size: 0.72rem;
  padding: 5px 12px;
  border: 1px solid var(--blue-border);
  border-radius: 100px;
  color: var(--muted);
  letter-spacing: 0.06em;
  background: var(--cyan-glow2);
}
.stack-tag:hover { border-color: var(--cyan); color: var(--cyan); }

/* SECTION COMMONS */
section { position: relative; z-index: 1; }
.section-inner { max-width: 1100px; margin: 0 auto; padding: 100px 48px; }
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--cyan);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

/* ABOUT */
#about { border-top: 1px solid var(--blue-border); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-photo-wrap {
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.about-photo {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 24px rgba(0,229,255,0.25), 0 0 0 4px rgba(0,229,255,0.08);
  transition: box-shadow 0.3s, transform 0.3s;
}
.about-photo:hover {
  box-shadow: 0 0 40px rgba(0,229,255,0.45), 0 0 0 6px rgba(0,229,255,0.12);
  transform: scale(1.05);
}
.about-photo-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.about-photo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
}
.about-photo-role {
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}
.about-text p {
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 20px;
  font-size: 0.95rem;
  font-weight: 300;
}
.about-text p strong { color: var(--cyan); font-weight: 500; }

.btn-cv {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 12px 24px;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  background: var(--cyan-glow2);
  cursor: none;
  transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-cv:hover {
  background: var(--cyan);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 0 28px var(--cyan-glow);
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.stat-box {
  background: var(--blue-card);
  border: 1px solid var(--blue-border);
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.stat-box:hover { border-color: var(--cyan); transform: translateY(-4px); }
.stat-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 0.8rem; color: var(--muted); letter-spacing: 0.05em; }

/* PROJECTS */
#projects { border-top: 1px solid var(--blue-border); }
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.project-card {
  background: var(--blue-card);
  border: 1px solid var(--blue-border);
  padding: 40px;
  cursor: none;
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(0,229,255,0.07), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover::before { opacity: 1; }
.project-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}
.project-num {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  margin-bottom: 24px;
  opacity: 0.7;
}
.project-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.project-desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-weight: 300;
}
.project-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.project-tag {
  font-size: 0.7rem;
  padding: 4px 10px;
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: 100px;
  color: var(--cyan);
  letter-spacing: 0.05em;
  background: var(--cyan-glow2);
}
.project-arrow {
  position: absolute;
  top: 32px; right: 32px;
  font-size: 1.2rem;
  color: var(--muted);
  transition: color 0.2s, transform 0.2s;
}
.project-card:hover .project-arrow { color: var(--cyan); transform: translate(4px, -4px); }
.project-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* SKILLS */
#skills { border-top: 1px solid var(--blue-border); }
.skills-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; }
.skills-desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.8;
  font-weight: 300;
}
.skills-cats { display: flex; flex-direction: column; gap: 32px; }
.skill-cat-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}
.skills-row { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-pill {
  padding: 8px 18px;
  border: 1px solid var(--blue-border);
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--white);
  background: var(--blue-card);
  transition: border-color 0.2s, color 0.2s, transform 0.15s, background 0.2s;
  font-weight: 400;
  letter-spacing: 0.02em;
}
.skill-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
  background: var(--cyan-glow2);
}

/* EXPERIENCE */
#experience { border-top: 1px solid var(--blue-border); }
.exp-list { display: flex; flex-direction: column; gap: 2px; }
.exp-item {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  align-items: start;
  gap: 40px;
  padding: 32px 0;
  border-bottom: 1px solid var(--blue-border);
  transition: padding-left 0.2s;
}
.exp-item:hover { padding-left: 16px; }
.exp-period {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-top: 4px;
  font-weight: 300;
}
.exp-role {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.exp-company { font-size: 0.85rem; color: var(--cyan); margin-bottom: 10px; }
.exp-desc { font-size: 0.85rem; color: var(--muted); line-height: 1.7; font-weight: 300; }
.school-btn{ display:inline-block; margin-top:8px; padding:12px 22px; background: rgba(0,229,255,0.08); border:1px solid var(--cyan); border-radius:8px; color: var(--cyan); text-decoration:none; font-size:0.78rem; font-weight:700; letter-spacing:0.08em; transition:0.25s; box-shadow: 0 0 18px rgba(0,229,255,0.12); }
.school-btn:hover{ background: var(--cyan); color: var(--blue); transform: translateY(-3px); box-shadow: 0 0 28px rgba(0,229,255,0.35); }
.exp-arrow { color: var(--muted); font-size: 1rem; padding-top: 4px; transition: color 0.2s; }
.exp-item:hover .exp-arrow { color: var(--cyan); }

/* CONTACT */
#contact { border-top: 1px solid var(--blue-border); }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-info p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.92rem;
  font-weight: 300;
  margin-bottom: 36px;
}
.contact-socials { display: flex; flex-direction: column; gap: 12px; }
.social-link {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 12px 0;
  border-bottom: 1px solid var(--blue-border);
  transition: color 0.2s, padding-left 0.2s;
}
.social-link:hover { color: var(--cyan); padding-left: 8px; }
.social-link svg { width: 16px; height: 16px; fill: currentColor; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.form-input, .form-textarea {
  background: var(--blue-card);
  border: 1px solid var(--blue-border);
  border-radius: 4px;
  padding: 14px 18px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  resize: none;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.08);
}
.form-textarea { min-height: 120px; }
.form-submit {
  background: transparent;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 36px;
  border-radius: 4px;
  cursor: none;
  transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
  align-self: flex-start;
}
.form-submit:hover {
  background: var(--cyan);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0,229,255,0.3);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--blue-border);
  padding: 32px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
  font-size: 0.78rem;
  color: var(--muted);
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.06em;
  font-size: 0.9rem;
}

/* DIVIDER LINE ACCENT */
.line-accent {
  display: inline-block;
  width: 48px;
  height: 2px;
  background: var(--cyan);
  vertical-align: middle;
  margin-right: 14px;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.hide-up {
  opacity: 0;
  transform: translateY(40px);
}

/* HAMBURGER BUTTON */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--blue-border);
  border-radius: 6px;
  cursor: pointer;
  padding: 8px;
  z-index: 200;
  transition: border-color 0.2s;
}
.hamburger:hover { border-color: var(--cyan); }
.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.16,1,0.3,1), opacity 0.2s, background 0.2s;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--cyan); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--cyan); }

/* MOBILE SIDEBAR OVERLAY */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 150;
  pointer-events: none;
}
.mobile-nav-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 14, 28, 0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.mobile-nav-panel {
  position: absolute;
  top: 0; left: 0; right: 0;
  background: var(--blue-mid);
  border-bottom: 1px solid var(--blue-border);
  padding: 100px 36px 48px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-100%);
  transition: transform 0.45s cubic-bezier(0.16,1,0.3,1);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.mobile-nav.open {
  pointer-events: all;
}
.mobile-nav.open .mobile-nav-backdrop { opacity: 1; }
.mobile-nav.open .mobile-nav-panel { transform: translateY(0); }

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--blue-border);
  text-decoration: none;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  transition: color 0.2s, padding-left 0.2s;
}
.mobile-nav-link:last-child { border-bottom: none; }
.mobile-nav-link:hover { color: var(--cyan); padding-left: 8px; }
.mobile-nav-link span { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.15em; font-family: var(--font-body); font-weight: 300; text-transform: uppercase; }

.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--blue-border);
  background: var(--blue-card);
  color: var(--white);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.mobile-nav-close:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: rotate(90deg);
}

/* CV MODAL STYLES */
.cv-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.cv-modal.open {
  opacity: 1;
  pointer-events: all;
}
.cv-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 14, 28, 0.75);
  backdrop-filter: blur(8px);
}
.cv-modal-content {
  position: relative;
  background: var(--blue-mid);
  border: 1px solid var(--blue-border);
  box-shadow: 0 0 50px var(--cyan-glow);
  width: 90%;
  max-width: 450px;
  padding: 36px;
  border-radius: 8px;
  text-align: center;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1001;
}
.cv-modal.open .cv-modal-content {
  transform: scale(1) translateY(0);
}
.cv-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: color 0.2s;
}
.cv-modal-close:hover {
  color: var(--cyan);
}
.cv-modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--cyan);
}
.cv-modal-desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 28px;
}
.cv-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cv-modal-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: all 0.25s;
  cursor: none;
}
.cv-modal-btn.primary {
  background: var(--cyan);
  color: var(--blue);
  border: none;
  box-shadow: 0 0 20px rgba(0,229,255,0.2);
}
.cv-modal-btn.primary:hover {
  background: #33eeff;
  box-shadow: 0 0 30px rgba(0,229,255,0.4);
  transform: translateY(-2px);
}
.cv-modal-btn.outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--blue-border);
}
.cv-modal-btn.outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 900px) {
  nav { padding: 16px 24px; }
  .nav-badge { display: none; }
  .section-inner { padding: 80px 24px; }
  #hero { padding: 100px 24px 60px; }
  .about-grid, .skills-layout, .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .projects-grid { grid-template-columns: 1fr; }
  .exp-item { grid-template-columns: 1fr; gap: 8px; }
  .exp-arrow { display: none; }
  footer { flex-direction: column; gap: 8px; text-align: center; padding: 24px; }
  .hero-scroll { display: none; }
  .hero-stack { left: 24px; bottom: 24px; }
  .cursor, .cursor-ring { display: none; }
  body { cursor: default; }
  .cv-modal-btn { cursor: pointer; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: block; }
  .hero-title { font-size: 3.5rem; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}